Acta Cryst. (2007). E63, o1182-o1183  [ doi:10.1107/S1600536807005223 ]

17-Ethynyl-17-hydroxyandrosta-1,4-dien-3-one

L.-Q. Sheng, W.-G. Liang, G. Chen and H.-F. Shen

Abstract: In the title molecule, C₂₁H₂₆O₂, there are two C=C bonds [1.321 (4) and 1.334 (4) Å], which contribute to the planarity of ring A along with the carbonyl group. Rings B and C have regular chair conformations, while ring D has an envelope conformation. In the crystal structure, intermolecular O-HO and C-HO hydrogen bonds link the molecules into corrugated sheets parallel to the ab plane.

Online 7 February 2007

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